Product built to last with sturdy material: polypropylene (PP) plastic structure, mesh fabric covering, metal base. The back of our chair is breathable and at the same time protects the spine, helps correct the sitting posture and offers maximum comfort. The base is well strengthened, no worry about sudden falling. Practical use thanks to adjustable height by gas lift and swivel castors for easy movement. 360 degree rotation allows you to move freely. The ergonomic design of the children's office chair is based on the digital dynamic human model. You can easily adjust the height of the chair from 43 to 55 cm according to your needs. The thicker seat cushion is made of high density cotton which is more comfortable, sitting for a long time without deformation. To assemble according to manual inside delivery pack.